3-2 Wi-Fi利用 > Webサーバ機能

スケッチコンパイルエラー

スケッチコンパイル時に以下のようなエラーが発生する場合。

:
Multiple libraries were found for "WiFi.h"
Blink:2:31: error: ESPAsyncWebServer.h: No such file or directory
compilation terminated.
Used: /home/ard/.arduino15/packages/esp32/hardware/esp32/1.0.2/libraries/WiFi
Not used: /home/ard/opt/arduino-1.8.9/libraries/WiFi
exit status 1
ESPAsyncWebServer.h: No such file or directory
This report would have more information with
"Show verbose output during compilation"
option enabled in File -> Preferences.